C-reactive protein and nutrition.

Area of Science:

• Nutrition Science
• Cardiovascular Health
• Biomarkers

Background:

• High sensitivity C-reactive protein (hsCRP) is a key biomarker for predicting cardiovascular risk and guiding therapeutic strategies.
• Dietary patterns can influence systemic inflammation, as indicated by hsCRP levels.

Purpose of the Study:

• To compare hsCRP concentrations between vegetarian and non-vegetarian adults.
• To investigate the relationship between diet, age, and hsCRP levels in apparently healthy individuals.

Main Methods:

• Serum hsCRP concentrations were measured in two groups: vegetarians (lacto- and lacto-ovo) and non-vegetarians consuming a mixed diet.
• Participants were apparently healthy adults aged 19-75 years.
• Statistical analysis included correlation and comparison of hsCRP levels between groups.

Main Results:

• Vegetarians exhibited significantly lower average hsCRP concentrations (0.72 ± 0.07 mg/l) compared to non-vegetarians (1.62 ± 0.12 mg/l).
• Only 0% of vegetarians had hsCRP levels >3 mg/l, versus 14% in non-vegetarians.
• Non-vegetarians showed a positive linear correlation between hsCRP and age (r=0.35, p<0.001), while vegetarians displayed a horizontal trend.

Conclusions:

• A long-term vegetarian diet, rich in fruits and vegetables, is associated with lower, age-independent hsCRP levels.
• Dietary salicylates and other anti-inflammatory compounds in plant-based foods may contribute to reduced inflammation.
• Vegetarian diets may offer a protective effect against cardiovascular risk by modulating inflammatory markers.